Recognized by sight: parasitized by Helminthosphaeria clavariarum.
I didn’t save any, and can’t really see the perithecia in this photo, but it gets parasitized from the bottom up, which this photo does show.

Recognized by sight: parasitized by Helminthosphaeria clavariarum.
I didn’t save any, and can’t really see the perithecia in this photo, but it gets parasitized from the bottom up, which this photo does show.